var fBrw=(navigator.userAgent.indexOf('MSIE')!= -1 && navigator.userAgent.indexOf('Windows')!= -1);
var fDSp=(typeof(document.getElementById)!='undefined');
var RefBanner = new Array();
var RefAdLogo = new Array();
var RefAdLBox = new Array();
var RefAdLBar = new Array();
var RefColumn = new Array();
var RefAdLeft = new Array();
var RefURight = new Array();
var RefUColum = new Array();
var RefDRight = new Array();
var RefDiLeft = new Array();
var RefFlLeft = new Array();
var RefAtDate = new Array();
var RefAtQuan = new Array();
var RefAPopup = new Array();
var RefUPopup = new Array();
var RefNormal = new Array();
var RefExpand = new Array();


if (typeof(PageHost) == 'undefined') var PageHost = '';



var objXML;
var aFlag=true;

function AddHeader(Name, Header, Buttons, Symbol, AddChildTable)
{
	document.writeln('<table width="100%" border=0 cellspacing=0 cellpadding=1 bgcolor="#E9E9E9"><tr><td>');

	if (Header!='')
	{
		document.writeln('<table width="100%" border=0 cellspacing=0 cellpadding=0>');
		document.writeln('<tr>');

		if (typeof(Symbol)!='undefined')
		{
			document.writeln('<td height=16><img src="', Symbol, '" border=0></td>');
		}

		document.writeln('<td height=16 width="100%" align=left ><b>&nbsp;', Header, '</b></td>');

		if ((Buttons & 1) && fDSp)
		{
			document.write('<td width=15 align=right>');
			document.write('<a href="JavaScript:ItemMinimize(\x27', Name, '\x27)">');
			document.write('<img src="images/min.gif" name="IDI_', Name, '" border=0 alt="Minimize | Maximize">');
			document.write('</a></td>');
		}

		document.writeln('</tr></table>');
	}

	//document.writeln('<table width="100%" border=0 cellspacing=0 cellpadding=0 id="tIDM_', Name, '"><tr><td><div class=BreakLine id="IDM_', Name, '">');
	document.writeln('<table width="100%" border=0 cellspacing=0 cellpadding=0><tr><td id="IDM_', Name, '">');
	if (typeof(AddChildTable)=='undefined')
	{
		document.writeln('<table align=center width="100%" cellspacing=0 cellpadding=0 border=1>');
		LastChild = 1;
	}
	else
	{
		LastChild = 0;
	}
	return true;
}

function AddFooter()
{
	if (LastChild)
	{
		document.writeln('</table></td></tr></table></td></tr></table>');
	}
	else
	{
		document.writeln('</td></tr></table></td></tr></table>');
	}
}

function ItemMinimize(Name)
{
	if (!fDSp)
	{
		return;
	}

	var MItem=document.getElementById('IDM_'.concat(Name));
	var Image=document.getElementById('IDI_'.concat(Name));
	
	if (MItem.style.display!='')
	{
		//MItem.setAttribute('style','display:""');
		MItem.style.display='';
		Image.src='images/min.gif';
	}
	else
	{
		//MItem.setAttribute('style','display:none');
		MItem.style.display='none';
		Image.src='images/max.gif';
	}
}

function LTrim(iStr)
{
	while (iStr.charCodeAt(0) <= 32)
	{
		iStr=iStr.substr(1);
	}
	return iStr;
}

function RTrim(iStr)
{
	while (iStr.charCodeAt(iStr.length - 1) <= 32)
	{
		iStr=iStr.substr(0, iStr.length - 1);
	}
	return iStr;
}

function Trim(iStr)
{
	while (iStr.charCodeAt(0) <= 32)
	{
		iStr=iStr.substr(1);
	}

	while (iStr.charCodeAt(iStr.length - 1) <= 32)
	{
		iStr=iStr.substr(0, iStr.length - 1);
	}

	return iStr;
}

function Left(str, n)
{
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function TrimAndRDS(iStr)
{
	function IsHyperLink(iStr)
	{
		var i = 0, c = ' ';

		if (iStr.charAt(0) == '.')
			return false;

		for (i=0; i < iStr.length; i++)
		{
			c = iStr.charAt(i).toLowerCase();
			if (c >= '0' && c <= '9')
				continue;
		
			if (c >= 'a' && c <= 'z')
				continue;
		
			if ('@_-&.?#+-/:'.indexOf(c) != -1)
				continue;

			return false;
		}
	
		return true;
	}

	function CheckDotAfter(iStr)
	{
		var p0 = 0, p1 = 0, p2 = 0, p3 = 0;

		while ((p1 = iStr.indexOf('.', p0)) != -1)
		{
			if (iStr.charAt(p1 - 1) == ' ')
			{
				iStr = iStr.substr(0, p1 - 1).concat(iStr.substr(p1));
				p0 = p1;
			}
			else
			{
				p0 = p1 + 1;
			}

			if (iStr.charAt(p0) != ' ')
			{
				if ((p3 = GetLastBreak(iStr, p0)) == -1)
				{
					p3 = p0;
				}
				else
				{
					p3 = p3 + 1;
				}
		
				if ((p2 = GetNextBreak(iStr, p3)) == -1)
				{
					if (IsHyperLink(iStr.substr(p3)))
					{
						iStr = iStr.substr(0, p3).concat(iStr.substr(p3).toLowerCase())
						break;
					}
					else
					{
						if (iStr.charAt(p0) < '0' || iStr.charAt(p0) > '9')
						{
							iStr = iStr.substr(0, p0).concat(' ').concat(iStr.substr(p0, 1).toUpperCase()).concat(iStr.substr(p0 + 1));
							p0++;
						}
					}
				}
				else
				{
					if (IsHyperLink(iStr.substring(p3, p2)))
					{
						iStr = iStr.substr(0, p3).concat(iStr.substring(p3, p2).toLowerCase()).concat(iStr.substr(p2));
						p0 = p2 + 1;
					}
					else
					{
						if (iStr.charAt(p0) < '0' || iStr.charAt(p0) > '9')
						{
							iStr = iStr.substr(0, p0).concat(' ').concat(iStr.substr(p0, 1).toUpperCase()).concat(iStr.substr(p0 + 1));
							p0++;
						}
					}
				}
			}
			else
			{
				iStr = iStr.substr(0, p0 + 1).concat(iStr.substr(p0 + 1, 1).toUpperCase()).concat(iStr.substr(p0 + 2));
			}
		}	

		return iStr;
	}


	function CheckScope(iStr, s1, s2)
	{
		var p0 = 0, p1 = 0;

		for (p0 = 0; (p1 = iStr.indexOf(s1, p0)) != -1; )
		{
			if (iStr.charAt(p1 + 1) == ' ')
				iStr = iStr.substr(0, p1 + 1).concat(iStr.substr(p1 + 2));

			if (p1 > 0)
				if (iStr.charAt(p1 - 1) != ' ')
				{
					iStr = iStr.substr(0, p1).concat(' ').concat(iStr.substr(p1));
					p1++;
				}
			
			p0 = p1 + 1;
		}

		for (p0 = 0; (p1 = iStr.indexOf(s2, p0)) != -1; )
		{
			var SkipChar = ':,.;!?'.concat(s2);

			if (p1 > 0)
				if (iStr.charAt(p1 - 1) == ' ')
				{
					iStr = iStr.substr(0, p1 - 1).concat(iStr.substr(p1));
					p1--;
				}

			if (iStr.charAt(p1 + 1) != ' ' && SkipChar.indexOf(iStr.charAt(p1 + 1)) == -1)
				iStr = iStr.substr(0, p1 + 1).concat(' ').concat(iStr.substr(p1 + 1));

			p0 = p1 + 1;
		}		

		return iStr;
	}
	
	iStr = ReplaceAll(iStr, '  ', ' ');
	iStr = ReplaceAll(iStr, ' \r\n', '\r\n');
	iStr = ReplaceAll(iStr, '\r\n ', '\r\n');

	iStr = CheckCharAfter(iStr, ',', false);
	iStr = CheckCharAfter(iStr, ':', false);
	iStr = CheckCharAfter(iStr, ';', false);
	iStr = CheckCharAfter(iStr, '?', true);
	iStr = CheckCharAfter(iStr, '!', true);

	iStr = CheckScope(iStr, '(', ')');
	iStr = CheckScope(iStr, '[', ']');

	iStr = ReplaceAll(iStr, 'http: //', 'http://');
	iStr = CheckDotAfter(iStr);

	iStr = ReplaceAll(iStr, ', \r\n', ',\r\n');
	iStr = ReplaceAll(iStr, ': \r\n', ':\r\n');
	iStr = ReplaceAll(iStr, '; \r\n', ';\r\n');
	iStr = ReplaceAll(iStr, '? \r\n', '!\r\n');
	iStr = ReplaceAll(iStr, '! \r\n', '!\r\n');
	iStr = ReplaceAll(iStr, '. \r\n', '.\r\n');


	if (iStr.charAt(0) == ' ')
		iStr = iStr.substr(1);

	if (iStr.charAt(iStr.length - 1) == ' ')
		iStr = iStr.substr(0, iStr.length - 1);

	return iStr.substr(0, 1).toUpperCase().concat(iStr.substr(1));
}

function total_area(id1, id2, id3){
		id1= getObj(id1);
		id2= getObj(id2);
		id3= getObj(id3);
		if(id1.value!=''){
		    if(!isFinite(id1.value)) {
				alert("Số không hợp lệ");
				id1.focus();
				return;
			}
		}

		if(id2.value!=''){
		    if(!isFinite(id2.value)) {
				alert("Số không hợp lệ");
				id2.focus();
				return;
			}
		}
		rs = parseFloat(id1.value) * parseFloat(id2.value) ;

		if(!isNaN(rs)) id3.value= rs;
		else {
				if((id1.value!='') || (id2.value!='')){
				  id3.value="";
				}

		}
}